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6 July 2018 Conceptual design of a wide-field near UV transient survey in a 6U CubeSat
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Abstract
A conceptual design of a wide-field near UV transient survey in a 6U CubeSat is presented. Ultraviolet is one of the frontier in the transient astronomy. To open up the discovery region, we are developing a 6U CubeSat for transient exploration. The possible targets will be supernova shock-breakouts, tidal disruption events, and the blue emission from NS-NS mergers in very early phase. If we only focused on nearby/bright sources, the required detection limit is around 20 mag (AB). To avoid the background and optical light, we chose a waveband of 230-280 nm. As an imaging detector, we employ a delta-doped back-illuminated CMOS. In addition to delta doping, the multi-layer coating directly deposited on the detector enables both a high in-band UV QE and the ultra-low optical rejection ratio. Taking into account these specifications, even an 8 cm telescope can achieve the detection limit of 20 magAB. The expected FoV is larger than 60 deg2 .
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yoichi Yatsu, Toshiki Ozawa, Kenichi Sasaki, Hideo Mamiya, Nobuyuki Kawai, Yuhei Kikuya, Masanori Matsushita, Saburo Matunaga, Shouleh Nikzad, Pavaman Bilgi, Shrinivas R. Kulkarni, Nozomu Tominaga, Masaomi Tanaka, Tomoki Morokuma, Norihide Takeyama, and Akito Enokuchi "Conceptual design of a wide-field near UV transient survey in a 6U CubeSat", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 106990D (6 July 2018); https://doi.org/10.1117/12.2313026
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